Job Description
Job Description
We’re building something ambitious at Hashfire — programmable, execution-ready contracts for asset-based lending and beyond. Real-world agreements that don’t just sit in a PDF drawer, but run — linked to payment logic, financing terms, validator infra, and eventually, liquidity. Think DocuSign meets DeFi, with teeth.
We’re looking for a Head of Blockchain Engineering to lead that effort end-to-end. You’ll be writing and auditing production smart contracts, building validator infrastructure, architecting staking and rewards logic, integrating with DeFi protocols, and shaping the broader protocol design. You’ll work directly with the founders and help set the bar for how institutional-grade smart contracts should actually function.
This is not a one-and-done contract gig. It’s a chance to define the stack, roadmap, and engineering culture of a serious product with serious ambitions.
What you’ll do:
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Write secure, efficient smart contracts in Solidity
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Lead the buildout of our ABL protocol, from agreement logic to payment execution
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Stand up validator and staking systems with clear economic modeling
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Build backend services and APIs that bridge blockchain with traditional infra
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Integrate with DEXs, DeFi protocols, and — soon — institutional partners
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Work with a small, obsessive team that cares about getting it right
You should have:
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3+ years of production Solidity experience
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Comfort working across TypeScript (Next.js, Express)
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Familiarity with EVM-compatible chains, Layer 2s, gas optimization, and security audits
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Experience integrating with DeFi protocols and working in lean, fast-paced teams
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The desire to own something and make the hard architectural decisions
Bonus if you’ve worked in fintech, lending, or at the infra layer of a Web3 product.
Company DescriptionHashfire is building smart contracts that actually do something.
We turn agreements into executable code — powering payments, financing, and on-chain trust for real-world use cases like asset-based lending and vendor contracts. Our team moves fast, avoids fluff, and builds infrastructure that works. Backed by leading Web3 accelerators and partnering with governments and enterprises, we’re creating a new standard for programmable legal agreements.
Company Description
Hashfire is building smart contracts that actually do something.\r\nWe turn agreements into executable code — powering payments, financing, and on-chain trust for real-world use cases like asset-based lending and vendor contracts. Our team moves fast, avoids fluff, and builds infrastructure that works. Backed by leading Web3 accelerators and partnering with governments and enterprises, we’re creating a new standard for programmable legal agreements.